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The objective of this experiment was to evaluate the selection of a pig line with improved resistance to swine mycoplasmal pneumonia and meat production in Landrace pigs. The selection was conducted over 5 generations using estimated breeding values of daily gain (DG), backfat thickness (BF), and mycoplasmal pneumonia scores (MPS). In order to evaluate various lung lesions, we established two different...
Residual feed intake (RFI) represents the deviation of the actual feed consumption of an animal from that predicted from combination of growth traits. Data on 1642 Duroc (380 boars, 868 gilts, and 394 barrows) pigs in seven generations were used to estimate genetic parameters for measures of RFI, daily feed intake (FI), average daily gain (ADG), backfat (BF), and loin eye area (LEA). Four measures...
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